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Advocard [28]
2 years ago
6

The math score for ten of Mrs. Moore's students are shown below. How many students made a score of more than 69 but less than 90

?
​

Mathematics
1 answer:
TEA [102]2 years ago
3 0

Answer:

8

Step-by-step explanation:

first, 70-79 have 3 students

then 80-89 have 5 students

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Suppose that many large samples are taken from a population and that the
rewona [7]

Answer:

0.22 -1 *0.029 =0.191

0.22 +1 *0.029 =0.249

And the best option would be:

D. (0.191 to 0.249)

Step-by-step explanation:

For this case we know that the mean is:

\bar X = 0.22

And the standard error is given by:

SE = 0.029

We want to construct a 68% confidence interval so then the significance level would be :

\alpha=1-0.68 = 0.32 and \alpha/2 =0.16. The confidence interval is given by:

\bar X \pm z_{\alpha/2} SE

Now we can find the critical value using the normal standard distribution and we got looking for a quantile who accumulate 0.16 of the area on each tail and we got:

z_{\alpha/2}= 1

And replacing we got:

0.22 -1 *0.029 =0.191

0.22 +1 *0.029 =0.249

And the best option would be:

D. (0.191 to 0.249)

5 0
3 years ago
Draw a quadrilateral that does not belong then explain why
tatyana61 [14]

Answer:

a kite

Step-by-step explanation:

6 0
3 years ago
How many solutions does this system of equations have?
guajiro [1.7K]

Answer:

1 solution

Step-by-step explanation:

A system of linear equations has no solution when the graphs are parallel.

7 0
3 years ago
Which values are outliers? 6. 1, 3. 9, 6. 4, 10. 6, 4. 4, 4. 5, 1. 6, 11. 2, 0. 8, 3. 9, 6. 5 Select Outlier or Not Outlier for
Kisachek [45]

Answer:

<em>10 and 11</em>

Step-by-step explanation:

  1. An outlier is a number that is much larger or smaller than the general populous of numbers. For example, if there was a dot plot with dots clustered at 2, 3, and 5, but there was one or two dots around 10, then 10 would be considered an outlier.
  2. Let's put the numbers in order to see easier which numbers are outliers. I will not copy down repeating numbers.
  3. 0, 1, 2, 3, 4, 5, 6, 10, 11.
  4. 10 and 11 are isolated.

If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.

8 0
2 years ago
You post a survey to the school about favorite desserts. Of the 540 students at the school, 60 answered the survey. 15 students
makkiz [27]

Answer:

135

Step-by-step explanation:

1. 540/60=9

2.9×15=135

4 0
3 years ago
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